Pliers



F. SIEVERN I March 28, 1933.

PLIERS Filed Jan. 9. 1931 INVENTOR Patented Mar. 28, 1933 UNITED STATES FREDRICK SIEVERN, or ivxcxnnsromr, rmvnsynvnnrn PLIERS 1 Application filed January 9, 1931. Serial no. 567,658.

My invention is herein described as applied to pliers such as those employed by wiremen, but it will be understood that the invention can be utilized in connection with various 5 other forms of tools.

One object of my invention is to provide a tool whereby the end of a pipe or other conduit may be reamed to remove burrs formed at the inner corner thereof through 19 cutting, and to smooth and bevel such inner corner so that the end of the pipe will be unobstructed and so that a smooth surface is provided.

Another object of my invention is to provide a tool that may be effectively used to unscrew broken pipe ends or lamp sockets from the members in which they may be threaded. V

A further object of my invention is to provide a tool that may be conveniently employed to scrape insulation from electric wire.

Still another object of my invention is to provide an improved form of tool which will serve as a handle for operating hack saw blades.

One form which my invention may take is shown in the accompanying drawing wherein Figure 1 is a plan view of a pair of pliers equipped with my invention; Fig. 2 is a side elevational view thereof; Fig. 3 is a plan view of the pliers in inverted position with respect to the position shown in Fig. 1; Fig.

4 shows the manner in which the pliers may M be utilized to unscrew the socket of a broken lamp bulb from its base, and Fig. 5 shows the tool in use as a holder or handle for a hack saw blade.

The pliers are composed of jaw portions 7 and 8 that are formed on the ends of handle portions 9 and 10, respectively, the member 79 being connected to the member 810 by a pivot 12 which is carried by the member 8-9 and extends through a hole 13 in the r member 7-9. The hole is enlarged at its ends to permit of shifting of the jaws relative to one another in directions radially of the pivot, so that the pliers may be adapted to pipes or other objects of various sizes. The outer side of thejaw 7 is provided with spirally-formed threads or cutting edges 14 -bar-like form.

which can be utilizedto ream the end of a pipe by inserting the jaws of the pliers into the pipe and twisting the pliers. The spiral. arrangement not only improves the cutting action but serves to cause the cuttings to be 5 carried away from the surface being reamed. The reaming will remove ragged and sharp-, ened edges in the case of conduits through which electrical conductors are to be drawn, and will also remove protuberancesfrom the interior of a pipe which result from sawing or cutting the pipe.

The serrations or threads 14: are also useful in unscrewing broken pipe ends or lamp sockets. For example, in Fig. 1, I show a socket 115 of a broken lamp bulb into which the pliers may be inserted and then twisted to unscrew the socket from its base 16.

sharpened ribs or teeth 17 are provided on the jaw 8 and these ribs may not only cooperate with the cutting edges 14 when used as a reaming tool or as a means for unscrewing a lamp socket or the like, but are of further utility in that they can be utilized as a scraper for removing insulation from electric wires. For example, the covered wire can be placed one fiat surface, and the pliers moved lengthwise of the same with the teeth 17 in contact with the insulation to remove V such insulations from thewires.

The rear ends of the handles 9 andlO are slit or bifurcated for the reception of the ends of a hack saw blade 18, Which blade may carry pins or studs 19 that serve as stop members for maintaining the blade in posi tion in said handles. It Will be seen that with the parts in the position'shown in Fig.

5, the mid portion of the pliers can be grasped by the user and sawing movement imparted to the blade 18. The handles 9and 10, being pivotally connected will, of course, permit of their being used with saw blades of various lengths. V

For convenience of description, I hereinafter claim my invention asapplied to pliers, but it'vvill be understood that I use the term pliers in its broad sense to include otherpivotally connected members of elongatedor I claim as my invention Pliers having the outer ends of their handies bifurcated for the reception of a blade which is provided with transversely-extending pins at its ends, the outer sides of the bi furcated portions serving as seats for the pin and lying upwardly and inwardly-inclined positions when the plier handles are spread for engagement with a saw blade.-

In testimony whereof I, the said FREDRIGK SIEVERN have hereunto set my hand.

FREDRIOK SIEVERN. 

